Drawing-roll for drawing and evening machines.



, P McHALB.

DRAWING ROLL FOR DRAWING AND EVENING MACHINES.

J APPLICATION FILED ,JAN.3, 1913, 1,091,366. Patented Max:124, 1914 2 SHEETSSHEET 1.

311 uzwboz PM 21 fl jfale P. MOHALE.

DRAWING ROLL FOR DRAWING AND EVENING MACHINES.

APPLICATION FILED JAN.3, 1913.

Patented Mar. 24, 191i 2 SHEETS-SHEET 2.

PHILIP McI-IALE, OF NEW BEDFORD, MASSACHUSETTS. I

DRAWING-ROLL FOR DRAWING AND EVENING MACHINES.

Specification of Letters Patent. I

Patented Mar. .24, 1914.

Application filed January 3, 191a. SeriaI'No. 740,045.

To all whom it may concern:

Be it known that I, PHILIP McHaLc, a citizen of the United States, residing at New Bedford, in the county of Bristol and State of Massachusetts, have invented new and useful Improvements in Drawing-Rolls for Drawin and Evening Machines, of which the fo llowin is a specification This invention re ates toimprovements in the construction of drawing rolls for drawing and evening machines, and particularly to a novel construction of top drawing roll, whereby the rolls are adapted-to compensate for variations in the weight or thickness of the cotton sliver, and to vary their drawing or feedin action, to secure an even and regulated feed of the material.

The object of the invention is to provide a top drawing roller for machines of the character described, whereby the said roller is adapted to have movement relative to the lower drawin roller to the same or varying degrees tfiroughout its length as occasion may require, to vary the feeding pressure according to the weight or thickness of difi'erent portions of the sliver being acted upon.

The invention consists of the features of construction, combination and arrangement of parts hereinafter fully described and claimed, reference being had to the accompanying drawings, in which z- Figure 1 is a sectional elevation of a portion of adrawin and evening machine, showin the application of my invention. Fig. 2 1s a rear elevation, partly in section, of the same. Fig. 3 is a vertical longitudinal section, on an enlarged scale, through a portion of the upper drawing roll. Fig.

4 is a vertical transverse section of the same on the line 4-4 of Fig. .3. Fig. 5 is a detail view of the mem ers of one of the sectional bushin s. Fig. 6 is a detail view' of one of the re 1 sections.

Referring to the drawings, 1 designates the frame of a drawing and evening machine, of any preferred type, 2 the lower fluted feeding or drawing roll, which may be of any suitable construction, and 3 the upper fluted or drawing roll, constructed in accordance with my invention.

The roll 3 comprises a shaft 4, on the ends of which are fitted sleeves 5 fixed to the shaft by set screws (3 and having outer angular end portions 7 engaging suitable sockets or openings inthe frame structure,

Arranged upon the shaft 4' adjacent to the respective sleeves 5 are spacing collars 8,

and mounted upon the shaft between the spacing collars is a roll proper comprisin a series of cylindrical roll sections 9 o. greater diameter than the shaft, and each havin the usual fluted periphery 10 to engage t ic cotton.

Each fluted roll section 9, of which any suitable number may be em )loyed, is held n spaced relation to. the shaft by a sectional bushing composed of a pair of semicircular bushing members 11 and 12. The two bushing members are provided with guiding and retainin pins or projections 13 and H, the pin 13 bemg movable within the upper portion of a transverse openin 15 in the shaft, th lower portion of whic receives the pin 14; of the bushing member 1.2. As shown, the said lower portion of the opening 15 is enlarged to receive a. coiled (aishioning spring 16 surrounding the in 14 and bearing against the bushing mem or 12. In practice, the bushing members are preferably made of a suitable lubricating metal, so that the roll sections 9 may freely turn thereon with a minimum degree of friction, and without the necessity of using a lubricant. For the purpose, of reducing friction to a minimum degree, the inner periphery of each roll section is provided with bearing ribs, which may be in the form of a thread, thus reducing its service contact with the bushing.

From the foregoing description, it will be understood that in the operation of the machine. the upper drawing roll as a whole may not only move vertically with relation to the lower drawing roll,'but each of'its sections 9 is perniittedto have independent motion with relation to the drawing roll whereby the rolls areadapted to accommodate. themselves to variations in the weight or thickness of the cotton sliver and to regulat-e their feeding action to secure an even-' ness of feed. Normally, of course, the backing: spring-s force the roll sections 9 toward the lower drawing roll and hold the lower bushing section spaced from the stationary shaft. while permitting the roll section to yield upuairdly to a greater or less degree according to the weight or thickness of the portion of the cotton sliver with which it is in contact. liy this means the upper roll is adapted to accommodate itself instantzc ncously and automatically to variations in too - with said bushings to independently and a I yieldingly back said cylinders.

5' roll proper e ')ns 1sting of a series of cylinx ders loosely surrounding said shaft, sectional bushings surrounding the shaft within the cylinders, each of said cylinders havgag a ribbed surface turning in contact withlts bushings, and resilient, means associated A drawing roll, including a shaft havin a seriesof transverse apertures, each aperture enlarged .at one end to form a socket, a roll proper consisting of a series of cylinders loosely surrounding the shaft, a hushmg comprising guided sections arranged within each cylinder, one section of '20 each bushing havinga guide pin projecting into thesmaller portion of the adjacent transverse opening in the shaft and the other section of the bushing having a pin projecting into the socketed end of-the said trans-verse opening, and a coiled spring associated with each bushing, each spring being. arranged .within the adjacent sockets and surrounding the latter named pin and bearing against the second-named bushing section, said springs co-acting with the bushings to back the cylinders.

3. A drawing roll including a shaft, a roll proper consistin of a series of cylinders loosely surroun ing the shaft, sectional bushings surrounding the shaft, one for each cylinder, and springs coaching with said bushings to yieldingly back the'cylinders, each of said cylinders havinga ribbed surface turning in contact with its bushing.

In testimony whereof I afiir; my signature in presence of two witnesses.

PHILIP McHALE.

Witnesses: ALFRED HOLMES EDGAR FRANKLIN -CURTIS. 

